topic Determining mean and average from dataset in SAS Data Science

Determining mean and average from dataset

pailek1996 — Sun, 25 Jun 2017 08:43:31 GMT

Hi guys. How can I determine the mean and average for fields of the Total Cholesterol and Glucose of an individual based on age and gender of an individual from the diabetes dataset? Should I sort it first? Any help and advice will be appreciated. Thanks

Diabetes File:

Re: Determining mean and average from dataset

Jagadishkatam — Sun, 25 Jun 2017 15:15:41 GMT

wouldn't you want to categorize the age first, since it is a numeric variable

convert it into a character variable. You could get the means from proc means as below. This is an untested code so please change the variable names as per your dataset. The autoname will create the mean variable names by concatenating the variable name with statistics name example chol_mean glucose_mean

proc means data=have nway;
class age gender;
var chol glucose;
output out=means mean=/autoname;
run;

Re: Determining mean and average from dataset

PaigeMiller — Sun, 25 Jun 2017 15:39:50 GMT

You could apply a format to the AGE variable to group it, as explained by @Jim_G in this thread:

https://communities.sas.com/t5/SAS-Enterprise-Guide/Creating-Age-Groups-from-Age-Variable/m-p/370295#M24172

Then you can use PROC MEANS or PROC SUMMARY on the data. If you use PROC SUMMARY with a CLASS statement, no sorting is necessary.

By the way, the "mean" is the same thing as the "average". 😉

Re: Determining mean and average from dataset

Reeza — Sun, 25 Jun 2017 17:16:03 GMT

If you're using EG and the tasks you can use the Summary Task.

Add age and gender into the GROUP variables and Cholesterol into the analysis variables.

If you're looking for code here's some examples:

https://github.com/statgeek/SAS-Tutorials/blob/master/add_average_value_to_dataset